ios手写代码添加控制器

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

// 1.创建window

self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

// 2.设置window的背景色

self.window.backgroundColor = [UIColor whiteColor];

MyOneViewController *one = [[MyOneViewController alloc] init];

//    [self.window addSubview:one.view];

self.window.rootViewController = one;

// 3.显示window

[self.window makeKeyAndVisible];

return YES;

}